About this Course
4.7
689 ratings
144 reviews
Specialization
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100% online

Start instantly and learn at your own schedule.
Flexible deadlines

Flexible deadlines

Reset deadlines in accordance to your schedule.
Hours to complete

Approx. 18 hours to complete

Suggested: 7 hours/week...
Available languages

English

Subtitles: English

Skills you will gain

AuthenticationActive Record PatternRuby On Rails
Specialization
100% online

100% online

Start instantly and learn at your own schedule.
Flexible deadlines

Flexible deadlines

Reset deadlines in accordance to your schedule.
Hours to complete

Approx. 18 hours to complete

Suggested: 7 hours/week...
Available languages

English

Subtitles: English

Syllabus - What you will learn from this course

Week
1
Hours to complete
5 hours to complete

Introduction to Active Record

In this module, we will begin exploring the database-interaction portion of Rails. We will start off with migrations that enable you to create and modify the schema of the database. We will then move on to discussing the Active Record gem Rails uses, which enables you to create, retrieve, update, and delete the data from the database. Before looking at Active Record, we will talk about some advanced Ruby features of meta-programming that will help facilitate our Active Record journey....
Reading
12 videos (Total 99 min), 3 readings, 3 quizzes
Video12 videos
Welcome to Module 1: Introduction to Active Record3m
Scaffolding6m
Database Setup and SQLite7m
Introduction to Migrations12m
Creating and Modifying Tables and Columns12m
Dynamic Dispatch7m
Dynamic Methods5m
Ghost Methods11m
Introduction to Active Record10m
Active Record CRUD: Part 113m
Active Record CRUD: Part 25m
Reading3 readings
Grading10m
Github Repository for Module 110m
Recommended Books10m
Quiz2 practice exercises
Scaffold and Migrations10m
Active Record Queries2m
Week
2
Hours to complete
5 hours to complete

Deep Dive into Active Record

In this module, we will continue exploring Active Record and look at ways to code advanced queries without exposing ourselves to risk from SQL injection (as well as what SQL injection actually is). We will then look at expressing relationships between entities in Active Record and validating the data being saved to the database....
Reading
11 videos (Total 86 min), 2 readings, 3 quizzes
Video11 videos
Seeding the Database4m
SQL Fragments and Dangers of SQL Injection9m
Array and Hash Condition Syntax6m
One-to-One Association12m
One-to-Many Association12m
Many-to-Many Association8m
Rich Many-to-Many Association9m
Active Record Scopes7m
Validations6m
N+1 Queries Issue and DB Transactions5m
Reading2 readings
GitHub Repository for Module 210m
Recommended Books10m
Quiz2 practice exercises
Advanced Querying4m
Relationships14m
Week
3
Hours to complete
5 hours to complete

Introduction to Action Pack

In this module, we will introduce Rails' Action Pack, which is a combination of Action Controller and Action View. We will see how REST has influenced routing in a Rails application and also talk about partials, form helpers, and layouts....
Reading
10 videos (Total 67 min), 2 readings, 3 quizzes
Video10 videos
Introduction to Action Pack4m
REST and Rails8m
Restful Actions: Index8m
Restful Actions: Show and Destroy8m
Restful Actions: New and Create4m
Strong Parameters and Flash9m
Restful Actions: Edit and Update5m
Partials5m
Form Helpers and Layouts8m
Reading2 readings
GitHub Repository for Module 310m
Recommended Books10m
Quiz2 practice exercises
Action Pack4m
Restful Actions8m
Week
4
Hours to complete
5 hours to complete

Security and Nested Resources in Action Pack

In this module, we will talk about how to deal with nested resources in Rails. We will then talk about securing your app with a username and password combination for authentication purposes and making sure that users are only authorized to make changes to and view their own resources. We will finish off the module by discussing pagination and deploying to Heroku Paas (Platform as a Service)....
Reading
10 videos (Total 85 min), 2 readings, 3 quizzes
Video10 videos
Building an App with Multiple Resources10m
Nested Resources: Part 18m
Nested Resources: Part 212m
Authentication8m
HTTP Sessions and Cookies8m
Sessions Controller and View11m
Authorization5m
Pagination6m
Deploying to Heroku and Enabling SSL8m
Reading2 readings
GitHub Repository for Module 410m
Recommended Books10m
Quiz2 practice exercises
Nested Resources10m
Authentication8m
4.7
144 ReviewsChevron Right
Career direction

43%

started a new career after completing these courses
Career Benefit

31%

got a tangible career benefit from this course

Top Reviews

By ABAug 11th 2016

A nice continuation to course 1 of this specialization, deeper dive into RoR, among other things you will learn how to manipulate/display database data and how to authenticate/authorize users!

By NLDec 17th 2015

Great explanation of not so easy to understand concepts. Lecturer provides good example that can help material better and see how what you've learned can be applied to real world scenarios.

Instructor

Avatar

Kalman Hazins

Adjunct Professor, Graduate Computer Science
Whiting School of Engineering

About Johns Hopkins University

The mission of The Johns Hopkins University is to educate its students and cultivate their capacity for life-long learning, to foster independent and original research, and to bring the benefits of discovery to the world....

About the Ruby on Rails Web Development Specialization

This Specialization covers the fundamentals of web development with Ruby on Rails. You’ll learn everything you need to develop your own web application using Ruby on Rails, SQL and NoSQL databases, and HTML/CSS, and Javascript. We will also touch on advanced topics such as security, services using HTTP/RESTful access patterns, and user access and user experience from multiple device platforms. In the final Capstone Project, you’ll apply your skills to develop a web application that hosts uploaded photos and displays them using a map....
Ruby on Rails Web Development

Frequently Asked Questions

  • Once you enroll for a Certificate, you’ll have access to all videos, quizzes, and programming assignments (if applicable). Peer review assignments can only be submitted and reviewed once your session has begun. If you choose to explore the course without purchasing, you may not be able to access certain assignments.

  • When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.

More questions? Visit the Learner Help Center.